PHP file 按行读取文件内容

/**
 * @param $file  //带路径的文件名
 * @return false|\Generator|resource
 * 读取文件
 */
protected function readFilebyLine($file)
{
    
    $handle = fopen($file, 'rb');
    while (feof($handle) === false) {
        yield fgets($handle);
    }

    fclose($handle);
    return $handle;
}

/**
 * 入口函数
 */
public function handleRun()
{
  //遍历文件夹下面所有文件

    $dir = Env::get('root_path') . 'public/testlog';
    $files = $this->direInfo();

    foreach ($files as $value) {
        echo 'start_time: ' . date('Y-m-d H:i:s') . PHP_EOL;
        //按行读取文件
        $fileData = $this->readFilebyLine($dir . '/' . $value);

        $baseInfo = [];
        foreach ($fileData as $k => $vd) {
            //输出文件
         var_dump($vd).PHP_EOL;

        }
        echo 'end_time: ' . date('Y-m-d H:i:s') . PHP_EOL;
        break;
    }
}

/**
 * @return array
 * log所有文件名
 */
protected function direInfo()
{
    $dir = Env::get('root_path') . 'public/testlog-bak';
    $handler = opendir($dir);
    while (($filename = readdir($handler)) !== false) {
        if ($filename !== "." && $filename !== "..") {
            $files[] = $filename;
        }
    }
    closedir($handler);
    return $files;
}

/**
 * @param $file
 * @return false|\Generator|resource
 * 读取文件
 */
protected function readFilebyLine($file)
{
    //使用yield.对内存没压力
    $handle = fopen($file, 'rb');
    while (feof($handle) === false) {
        yield fgets($handle);
    }

    fclose($handle);
    return $handle;

}

标签：handle,files,return,filename,按行,file,false,PHP
来源： https://www.cnblogs.com/guoshuai-yangxu/p/16350732.html